Asymptotic error-rate behavior for noncoherent on-off keying in the presence of fading

TitleAsymptotic error-rate behavior for noncoherent on-off keying in the presence of fading
Publication TypeJournal Article
Year of Publication1999
AuthorsAnnamalai, A., and V. K. Bhargava
JournalCommunications, IEEE Transactions on
Pagination1293 -1296
Date Publishedsep.
Keywordsadditive white Gaussian noise channel, amplitude shift keying, asymptotic error-rate, average error probability, AWGN channel, AWGN channels, error statistics, fading channels, mark error probability, noncoherent on-off keying, OOK signaling scheme, optimum threshold level, radio systems, ratio, Rayleigh channel, Rayleigh channels, Rician channels, Rician fading channel, signal-to-noise ratio, SNR, space error probability, transcendental equation

This article investigates the asymptotic error-rate behavior for the noncoherent on-off keying (OOK) signaling scheme in different fading environments and at both extremes of the signal-to-noise ratio (SNR). A transcendental equation to compute the optimum threshold level of noncoherent OOK operating over a Rician fading channel is derived. The optimum threshold level and its corresponding ratio of the mark and space error probabilities in additive white Gaussian noise (AWGN). Rayleigh, and Rician channels are tabulated as a function of the SNR. Geist (see ibid., vol.42, p.225, 1994) has shown that mark and space errors contribute equally to the average error probability in an AWGN channel when the SNR is large with optimum threshold setting. We show that mark errors predominate when the SNR is small and/or in fading channels


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